Credit & Copyright: A. Wilson & A. Young
(UMD),
P. Shopbell (Caltech),
CXC,
NASA
(Inset Credit: NRAO)
Explanation:
Amazingly detailed,
this
false-color x-ray image is centered on the galaxy Cygnus A.
Recorded by the orbiting
Chandra Observatory, Cygnus A is
seen here as a
spectacular high energy x-ray source.
But it is actually more
famous at the low energy end of
the electromagnetic spectrum as one of
the brightest celestial radio sources.
Merely 700 million light-years distant,
Cygnus A is
the closest powerful radio galaxy and the false-color
radio image (inset right)
shows remarkable similarity to Chandra's x-ray view.
Central in both pictures, the center of
Cygnus A shines brightly while emission
extends 300,000 light-years to either side along the same axis.
Near light speed jets of atomic particles
produced by a massive central
black hole are believed to cause
the emission.
In fact, the x-ray image reveals "hot spots" suggestive
of the locations where the particle jets are stopped in
surrounding cooler, denser gas.
The x-ray image also shows that the jets have
cleared out a huge cavity in the surrounding gas.
Bright swaths of emission within the cavity likely indicate
x-ray hot material ... swirling toward the
central black hole.
(Inset Credit: NRAO)
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Publikacii s klyuchevymi slovami:
chernye dyry - aktivnaya galaktika - black hole - radio galaxy - active galaxy - rentgenovskoe izluchenie - Lebed'-A - Radiogalaktika
Publikacii so slovami: chernye dyry - aktivnaya galaktika - black hole - radio galaxy - active galaxy - rentgenovskoe izluchenie - Lebed'-A - Radiogalaktika | |
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